jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#pragma once
8
9#include <AK/Queue.h>
10#include <LibWeb/HTML/EventLoop/Task.h>
11
12namespace Web::HTML {
13
14class TaskQueue {
15public:
16 explicit TaskQueue(HTML::EventLoop&);
17 ~TaskQueue();
18
19 bool is_empty() const { return m_tasks.is_empty(); }
20
21 bool has_runnable_tasks() const;
22
23 void add(NonnullOwnPtr<HTML::Task>);
24 OwnPtr<HTML::Task> take_first_runnable();
25
26 void enqueue(NonnullOwnPtr<HTML::Task> task) { add(move(task)); }
27 OwnPtr<HTML::Task> dequeue()
28 {
29 if (m_tasks.is_empty())
30 return {};
31 return m_tasks.take_first();
32 }
33
34 void remove_tasks_matching(Function<bool(HTML::Task const&)>);
35
36private:
37 HTML::EventLoop& m_event_loop;
38
39 Vector<NonnullOwnPtr<HTML::Task>> m_tasks;
40};
41
42}